MAC-10 Muzzle Brake
Threaded steel compensator for MAC-10 open-bolt pistols (9303), reduces recoil and muzzle rise. Specific to subcompact 9303 firearms, not shotguns/rifles. Falls under 9305.99.40.00.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If generic threaded fittings
Non-firearm brakes are Chapter 73 tube fittings.
If for MAC rifle conversions
Extended barrel versions classify as rifle parts.
If precision valve-like design
Highly engineered without firearm link may be valves.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Thread pitch specs (e.g
• 1/2-28) must match MAC models for proper classification
• Avoid import with suppressors; separate due to NFA rules
• Steel content declaration prevents Chapter 73 misclass
Related Products under HTS 9305.99.40.00
Kriss Vector Grip Extension
Polymer extension for lower grip on Kriss Vector SMG pistols (9303). Improves handling on recoil-mitigating firearms excl. shotguns/rifles. 9305.99.40.00 part.
PPSh-41 Drum Magazine Housing
Stamped steel housing for 71-round drum mags on PPSh-41 replicas (9303 semi-auto). Fits submachine pistols, not rifles/shotguns. 9305.99.40.00.
Ruger PC Carbine Charging Rod
Stainless steel rod for Ruger PC Carbine pistol configs (9303). Aids bolt manipulation on takedown firearms excl. traditional rifles. 9305.99.40.00.
Kel-Tec Sub-2000 Grip Frame
Polymer grip frame for Kel-Tec Sub-2000 pistol brace models (9303). Foldable design part excl. shotguns/rifles. 9305.99.40.00.
Sig MPX Handstop
Picatinny-compatible polymer handstop for Sig MPX pistols (9303). Safety feature for short firearms. 9305.99.40.00.
AR-15 Pistol Grip
A polymer pistol grip designed for attachment to AR-15 style firearms classified under heading 9303, such as semi-automatic carbines. It provides ergonomic control for the shooter and is specifically for non-shotgun, non-rifle firearms like short-barreled rifles or machine pistols. Falls under 9305.99.40.00 as a part of heading 9303 articles excluding shotguns and rifles.